69 
The pupa also strongly resembles that of Diabrotica. It is of the 
same milk white color as the larva, delicate in texture, and, like the 
larva also, is more robust than Diabrotica. The illustration ()) leaves 
little for description. 
DISTRIBUTION. 
This species is native to North America, and a perusal of literature 
and the examination of labels in local collections show that it is widely 
distributed from Canada southward tothe Gulf States and westward to 
Kansas and Minnesota. In addition to the States mentioned it has 
been recorded, or specimens have been seen by the writer, from New 
York, New Jersey, Pennsylvania, Delaware, Maryland, Virginia, Ohio, 
Indiana, [llinois, Florida, Alabama, Mississippi, Texas, and Nebraska. 
It will thus be seen that the species ranges through the transition, 
upper and lower austrai life zones, being most abundant and injurious 
in the lower austral or austroriparian zone. 
FOOD PLANTS; NATURE OF DAMAGE, 
At Glen Echo, Md., in the immediate vicinity of the infested beans, 
were numerous plants of tick trefoil (Meibomia spp.), but only three or 
four of the beetles could be found in June upon these in spite of con- 
tinued search, although this appears to be the favorite food plant in 
this latitude. Later in the season, in August, the beetles were more 
abundant on Meibomia, and the species which appeared to be preferred 
at this place was identified as Meibomia levigata DC. The garden 
in which this insect was observed at College Park, Md., Mr. Johnson 
Says, was planted in cowpeas the year previously. From what has 
been reported it would appear that the natural food plants are Meibo- 
mia and Lespedeza, and more rarely Falcata, and that, where beans 
and cowpeas are available, these are attacked, at least by the beetles, 
with equal relish. 
The species feeds indifferently on cowpeas and beans, and, everything 
considered, we are not yet justified in the assertion that it prefers any 
particular variety of bean. Of several patches of different varieties 
growing at Glen Echo the beetles were noticeably more abundant upon 
pole beans, although all the other varieties were attacked. At Pooles- 
ville and Marshall Hall they were rare on pole beans. Professor Pop- 
enoe states that the beetles affect ‘‘ principally the low-growing or bush 
varieties.” I believe it is safe to say that the low-growing or dwarf 
varieties are most injured, since their period of growth is shorter, while 
the pole beans put out new leaves after injury has ceased. 
The work of the beetles on different plants appears to be somewhat 
different. On bush clover, where the species was first observed at 
Ithaca, N. Y., the beetles were found to attack by preference the unex- 
panded leaf buds or freshly expanded leaves at the heads of the plants. 
Of hog peanut they also prefer the fresh, young leaves. Beetles that 
were confined with leaves of this plant selected the edges of the young. 
